mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-04 10:50:07 +00:00
dd731d53dc
2003-03-28 Kaz Kojima <kkojima@rr.iij4u.or.jp> * sysdeps/sh/bits/atomic.h (__arch_compare_and_exchange_val_8_acq): Return old value. Make asm output reg constraint earlyclobber. Renamed from... (__arch_compare_and_exchange_8_acq): ... this. (__arch_compare_and_exchange_val_16_acq): Return old value. Make asm output reg constraint earlyclobber. Renamed from... (__arch_compare_and_exchange_16_acq): ... this. (__arch_compare_and_exchange_val_32_acq): Return old value. Make asm output reg constraint earlyclobber. Renamed from... (__arch_compare_and_exchange_32_acq): ... this. (__arch_compare_and_exchange_val_64_acq): Renamed from... (__arch_compare_and_exchange_64_acq): ... this. (atomic_exchange_and_add): Use local variables and __arch_compare_and_exchange_val_64_acq. (atomic_add): Likewise. (atomic_add_negative, atomic_add_zero): Use local variables. * Makefile: Remove libmd5crypt goal.
95 lines
2.0 KiB
ArmAsm
95 lines
2.0 KiB
ArmAsm
/* Copyright (C) 2003 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <sysdep.h>
|
|
#include <shlib-compat.h>
|
|
#include <pthread-errnos.h>
|
|
#include "lowlevel-atomic.h"
|
|
|
|
|
|
#define SYS_gettimeofday __NR_gettimeofday
|
|
#define SYS_futex 240
|
|
#define FUTEX_WAIT 0
|
|
#define FUTEX_WAKE 1
|
|
|
|
.text
|
|
|
|
.globl __new_sem_trywait
|
|
.type __new_sem_trywait,@function
|
|
.align 5
|
|
__new_sem_trywait:
|
|
mov.l r12, @-r15
|
|
mov.l r8, @-r15
|
|
sts.l pr, @-r15
|
|
mov r4, r8
|
|
mov.l @r8, r0
|
|
2:
|
|
tst r0, r0
|
|
bt 1f
|
|
|
|
mov r0, r3
|
|
mov r0, r4
|
|
add #-1, r3
|
|
CMPXCHG (r4, @r8, r3, r2)
|
|
bf/s 2b
|
|
mov r2, r0
|
|
|
|
lds.l @r15+, pr
|
|
mov.l @r15+, r8
|
|
mov.l @r15+, r12
|
|
rts
|
|
mov #0, r0
|
|
|
|
1:
|
|
mov #EAGAIN, r8
|
|
mova .Lgot1, r0
|
|
mov.l .Lgot1, r12
|
|
add r0, r12
|
|
|
|
#if USE___THREAD
|
|
mov.l .Lerrno1, r0
|
|
stc gbr, r1
|
|
mov.l @(r0, r12), r0
|
|
add r1, r0
|
|
mov.l r8, @r0
|
|
#else
|
|
mov.l .Lerrloc1, r1
|
|
bsrf r1
|
|
nop
|
|
.Lerrloc1b:
|
|
mov.l r8, @r0
|
|
#endif
|
|
lds.l @r15+, pr
|
|
mov.l @r15+, r8
|
|
mov.l @r15+, r12
|
|
rts
|
|
mov #-1, r0
|
|
|
|
.align 2
|
|
.Lgot1:
|
|
.long _GLOBAL_OFFSET_TABLE_
|
|
#if USE___THREAD
|
|
.Lerrno1:
|
|
.long errno@GOTTPOFF
|
|
#else
|
|
.Lerrloc1:
|
|
.long __errno_location@PLT-(.Lerrloc1b+2-.)
|
|
#endif
|
|
.size __new_sem_trywait,.-__new_sem_trywait
|
|
versioned_symbol(libpthread, __new_sem_trywait, sem_trywait, GLIBC_2_1)
|